Ple gaining machine



July 25, 1933. v. G. OLIVER POLE GAINING MACHlNE Filed Sept. 21, 1931 3 Sheets-Sheet l INVENTOR WM @N NW If. 6. Oliver 2 ATTORNEYS y 1933- v. G. OLIVER 1,919,249

POLE GAINING MACHINE Filed Sept. 21, 1931 3 Sheets-Sheet 2 INVENTOR VT 6. Oliver 25 a ATTO RNEYS July 25, OLIVER POLE GAINING MACHINE Filed Sept. 21, 1931 5 Sheets-Sheet 3 INVENTOR If. 6. alive)" ATTORNEYS 9 i i substantially normal to the long axis of the end stop and the cutter frame guides, to 1ning the frame out of light skeleton side truss nipulating the cutter head and m'otorso as to" Patented July 25, 1933 v p i j p i f UNITED} stares- PAT NT] m;

VAUGHN e. OLIVER; or BIRMINGHAM, ALABAMA.

' roLneA mne MACHINE Application him September 21, 1931. Serial no; 563,9 3.

My invention relates to an apparatus for members carryin end projections "upon cutting gains, mortices or seats in poles and whicha stop is adj'ustably mounted and 'dis the like,'adapted to receive cross arms. My posed to engage the end of the pole upon invention is more particularly designed and; which the machine is mounted. By this adapted for cutting gains in telephone, telcmeans the gains are commenced at thede graph and power line poles. sireddistance from the top of the pole which 7 It is an important feature in the produc can be maintained as astandard. tion of poles of the character above described, My invention further contemplates equip that the gains cut therein shouldlie in true ping the transverselymovable cutter frame 7 parallelism so that the cross arms will all, if desired witha feed screw shaft adapted 9 stand in correct relative position. This is toengage the'guides for the frame andby I rendered difficult by reason of the irregular coaction therewi'thto feed the-frame trans size and shape of the poles. I have conversely across the pole. I j I ceived that this object can be attained by a My invention further contemplates that relatively light and inexpensive apparatus themotor' ai-ulits frame shall be light and adapted to be quickly clamped in operating portable so that it "can bereadily lifted from position on the pole and when thus applied engagement with one pair of guides into ento insure that all of the gains or seats cut gagement with the next pair of guides, therein shall be/in trueparallelism and all whereby it is possible, having ildjliS d ll pole; sure the regular and uniform tr'eatliient of To accomplish this end, my invention com a plurality'of poles withoutrequiring skill prises a light skeleton frame wor of piping ful handling or measuring of'any k-ind'on a 'or structural iron carrying at its ends transthe'part of the operator. 7 v f versely adjustable pole centering clamps ca- My invention further comprises the novel pable of being readily applied to thepole so details of "construction and arrangement as to grip the latter and hold the framein horparts -whichin their preferred embodiment izontal position substantially parallel with only are illustrated in the accompanying"? and centrally disposed over the long axis drawings whichform a part of the specifica:

36 of the pole. Upon this frame mount adtio'n, andin which: v M

justableguides adapted to be spaced on the Fig. 1 is a plan viewof my improved appa desired centers required for the gains and ratus, the arrow indicating themotionof each opposing pair adapted to guide a trans} travel of thecutter framein' cutting a gainjj versely movable frame carrying a vertically 1g. 2 is a side elevatlon of Fig.1, broken adjustable motor driven cutter, the blades of away; v 1 x 8 which preferably turn ina' horizontal plane Fig.3 is a vertical cross sectional view enand the diameter of which defines the width largcd, taken on the lineI'IIIII of-Fig. 2;

of the gain or seat. Fig. 4 a verticalsectional viewf taken 1 The motor driven cutter being readily adalong the lineIV IV of.Fig'; 3,showing-the'f justable vertically, the depth of the gain or .motor, cutter and post inside elevation;

out can be controlled and in order that it Fig. 5 isa detail cross sectional viewfof'the l may accommodate itself to irregularities in feed screw and its coacting guideand screw.

the pole, the cutter headcarries a gage which element on the frame; a when caused to engage the pole wi l hold the 6 is a-sectional view taken onthe'line cutter head in position to cut a gain or seatyVL-VI ofFig. 5; I u

of the desired depth. These gages are ad'- Fig. 7'isan end detail view of the pole'cen justable so that the depth of the gains can tering clamp and itsframe support i beregulated. l Fig.8 isan enlarged View in side elevation.

My invention also contemplates 'organizof amodified method of adjusting and liraset it quickly and accuratelyto its work; and Fig. 9 is a cross sectional view taken on the line IXIX of Fig. 8.

Similar reference numerals refer to similar parts throughout the drawings. 3

In the. preferred embodiment of my invention illustrated, I show a light skeleton frame work comprising pipe members 10 disposed inspaced parallel relation and. connected at their ends to cross plates 11. These pipes are bracedtogether at intervals by tubular cross members 12 and below each pipe is mounted a smaller pipe or tulnilarmember 13 braced thereto by vertically spaced members 14 and angled end braces 15 so as to produce a light trussed frameron each side. '1 mount on top of the upper pipes, T-irons 16 which extend from'endto en d thereof between the plates 11 and these T-iron's are, drilled so'that guide plates 17 can be attached thereto on any de-- sired centers, each guide plate having an upwardly projecting guide portion 18 which is adapted to enact with the threads on the feed screw 19 which is carried by the cutter frame 20. e j s The end plates 11 of the frame rest on the pole and each carries bearings 21 in which a V reversely threaded screw 22 is mounted, the

screw being operable by crank 23 and having dependent from its reverselythreaded portions "a pair of clamp jaws 24 which are adapted to receive between them and to grip a pole25. By manipulating the screws 22 the frame canbe quickly centered over the pole and caused to rigidly hold the frame in the relative to the end of the pole. These pipes also; serve as convenient handles for transporting and handling the frame.

The cutter frame 20 is formed of angle irons with their horizontal flanges disposed at the bottom of the frameand'to each end of the frame is connected a pair of guide bars 28 which at their inner ends are connected to the guide collar 29 (Fig. 5). This collar carries arms 30, by means of which it is attached totlie side members of the frame 20 so as to hold it rigidly in position at the center thereof. Apair of guide bars 28'are mounted between this collar and each end of the frame 20, and each pair of guides is adapted to receive between them and to engage aguide 18 so as to confine the movements of the frame I 20 to a direction normal to the long axis of the main frame. v

At the center of the frame 20 I mount inclined uprightangle members 31 which con- E nect at their top to the plate 32 and these are The motor 34 has a threaded top extension "35 which passcsfreely through the plate 32 andis 1n threaded engagement with a sleeve 36 hearing a crank 37 and a toothed wheel 38,

which. by coaction with the spring pressed dog 39 will serve to hold the sleeve 36 many desired position. The motor drives the cutter head 40 whichr is mounted on a vertical shaft 41 turning in a sleeve 42 rigidly connected to the motor casing and slidable through the collar 29, the sleeve carrying a key 43 to withstand the torsion and hold the .motor and its adjusting screw 35 against rotation. Y I ,1 V

This sleeve 42 at its lower end carries a plate 44 which extends beyond the cutter lead and at each'end has holesfor the passage of a pair of studs 45 which are rigidly.

it is moved transversely over the pole from either side;

The motor may be of any suitable type, that shown being an air motor with throttle lever 47 and an air inlet hose-48 which enters between the frame members 31 and will'follow the vertical adjustments of the motor therein.

The frame 20 carryingthe feed screw 19 is operable by crank 50, the screw being journaled in abearin g 51 mounted in the center of one end of the frame 20 and at its inner end it is mounted in thecollar 29 Fig. 5).

The cutter head is of the rotarytype with vertically disposed knives adapted as they rotate to cut a seat or gain of theproper width desired to receive a cross In operation, the main frame is lifted by the rods 13 and placed upon the pole to be gained. The c'ranks 2'3'are then turned to cause-the arms 24 to grip the pole with the frame horizontal and centered thereover. 1 These clamps are applled after the frame has i been set in proper adjustment by bringing the cross stop "26intoengagement with the end of the pole.

The pairs of guides 17 having then been bolted in correct position to center thegains I to be cut in the pole,-the apparatus is ready for the frame 20 to be set in place opposite the first cut to be made. This is done ,bylift- I ing the frame-20 onto the main frame with the guide bars 28 engaging the initial pair of guides 18. l 'he gauge plates orb ars'46 having been set to regulate the depth of cut desired for the gain, the frame is adjusted to bringthe motor into position with the cutter head atone side of the pole and with one end of the gauge bars 46 in position to engage the top center of the pole.

The dog 39 is thereupon released, thecrank 37'is operated to adjust the motor until the gage bars 46 touch the pole, the dog'39 is reset to lock 36, the motor is startechand the crank 50, operating the feed screw, is turned so as to feed the frame 20 as a carriage transversely across the main frame. This causes the cutter to contact with vthepole and as it moves-across the pole to cut the gain or seat, the depth of the seat being gauged by the bars 4.6 and the width determined by the diameter of the cutter. The cutterhead is readily removable in order that other heads of different diameters may be used to cut different width gains and, as already explained, are adapted to be lowered or raised to varythe depth of the cut. 1

IIavingv completedthis operation without further adjustment of the motor, andunless there is irregularity in the pole, the frame 20. can be lifted into engagement with the next pair of guides 18 and the same operation repeated. If there be irregularity in the pole, it will be necessary where this occurs to readjust the motor vertically for each cutting operation. Y The pole may be of square or round stock .and my invention is readily applicable to gain either type of pole or any stock requiriiig similar, treatment.

In Figs. 8 and 9, I have shown a modified apparatus which willsimplify and expedite the adjustment of the cutter head to different working positions relative to the pole. Here the motor 34- has its compressed air inlet pipe connected to its upper end through a pipe connection 52 wliichis freely slidable through a guide sleeve 53 fastened on top of the plate 32. Clamped to this pipe 52 is, an operating lever 54 which is pivotally connected at one end to the swinging link 55 that in turn is pivoted to a cross rod 56 on the frame mem-' bers 31. Y i j The lever 54 has a swivel connection to the pipe 52 which is arrangedas follows: A pair of bearing pins 57 are rigidly secured in diametrically opposite positions on the pipe" 52 and the lever 54 is bent outwardly and is perforated to receive one pin, while a clip 58 bolted tothe lever and passes on the other side of the pipe and receives the op posite pin.

clip 63 to the motor and through this clip I l drop loosely a gauge bar 64 having its bottom 65 oiit turned away from the cutter head; The bar itself is of rectangular stock so that it will not turn iii-the hole in the clip:63. On

the free end of the bevel I mount an adjustable collar66 having a set screw 67 therein mined the desired depth of the cutfto form the gain by the adjustment of the collar66, the lever 5-1 is clasped and reciprocated verticallyuntil the gage 1ciid 65 strikes the pole in the center-of the proposed gain. Thereupon, handle 62 iSIDGVQCllO clamp the lever 54; in such ad usted position and'then the.

carriage shifted to the left (Fig. 8) by manipulating the crank50. This will afford a quick aiid reaoy adjustment, the leveibi being locked at the 'iiionient that tlie collar; 66 is seen to litt by reason of contact with the pole.

While I two forms, it will be obvious to those skilled in the art that it not so limited, but'is susceptible of, various other changes and modifications without departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed there upon as are-imposed by theprioiyart or as are specifically set forth in the appended claims. ,1

lVhat Iclaim is 1. A gain cutter for poles, comprising a frame adapted to be clamped to. the pole, liXed guides on the frame, and a motor car-' riage transversely movable under control of said guides and comprising. acrank operated feed screw, said guides being adapted to coact with the feed screw to effect a feed of the carriage.

2. A gain cutter for poles comprising a frame, a means for securing the frame to a pole, guides: onthe frame, a carriage transversely reciprocable on said guides, {L lTIOtOI vertically adjustable 'in said carriage, a vertical shaft carrying said cutter head and driven by said. motor, and, a gauge means adjustably mounted on the motor and disposed to engage the pole in advance of the cutter to predeterminethe depth of the gain.

3. A gain cutter for poles, comprising a,

. transverse guide means, means to mount the guide means on a pole, a carriage i eciprocable on said guide means, a motor vertically ad just-able on the carriage, leverage n eansfor vertically adjusting the motor in combinaset adjustment, 'anda rotatable cutter head depending below the motor in position to en gage the pole and form. a gain therein responsive to transverse movement-of the carriage? have shown my invention in but 7 ieo tion with clamp means to holdthe motor-in comprising an elongated frame, means to mount it on the pole, a motor which drives a rotary cutter head in a horizontal plane, a motor carriage transferable to different operatin positions on the main frame uides for the carriage, means to reciprocatethe motor carriage, an ad]ustable gauge working in advance of the cutter head and by engagemcnt with the pole to predetermine the depth of the cut, and means to vertically ad-- just the motor and gauge to bring the latter into contact with the top of the pole in advance of the cutting operation.

7 6. A machine of the class described, comprising an elongated frame having an end supporting member adapted to rest on the pole free to shift laterally thereon, and relatively movable. 'rip members connected to the frame and adapted to engage the sides of the pole to clamp the frame in position thereon, and a gaining device arranged to be supported on the frame in different positions spaced lengthwise thereof and movable on the frame for cuttin a plurality of parallel gains in the upper side of the pole.

7. A machine of. the class described in claim 6, in which the end frame supporting members are flat and the pole gripping members have horizontal rectilinear move ment. I v

8. A machine according to claim 6, in Which the end members comprise a level bottom pol-e engaging surface, and the pole engaging members are adjustably mounted on the end members and adapted to engage the sides of the pole. and are movable toward and from each other rectilinearly by means of an actuating screw element.

9. A gain cutter for poles, comprising a main frame formed'of trussed side members connected by end plates and cross braces, :pole gripping elements carried by the end plates, a gauge bar carried by the side frame members and adjustable thereon to engage the end of the pole, a plurality of pairs of guide lugs adjustable along the frame sides,

a cutter frame movable into cooperative relation' with any desired pair of saidguide lugs, a motor driven gam cutter mounted on said cutter frame, and an ad ustable loosely .mounted gauge bar carried by the motor and set in advance of the cutter head to engage the poie in the line of the cut.

10; A machine of the class described comprising an elongated frame having portions formed tofit thc'side of a pole to lineup the frame with the pole lengthwise thereof, a

gaining device arranged to be supported on the frame in different positions spacedlengthwise tnercof for cutting a corresponding number of gains in the sideof the pole, and

an end member comprising side arms ad- ]ustably connected to the sides of the frame and having a straight cross member adapted to engage the ends of the pole.

VAUGHN OLIVER; 

